constraining it to >= 1.17 would be better while 1.18 isn't out yet..
On Thu, May 23, 2013 at 1:42 AM, Roman Cheplyaka <r...@ro-che.info> wrote: > Perhaps I'm missing something, but why not just > > cabal-version: >=1.18 > > ? > > It will constrain the Cabal version, not cabal-install, but judging from > the fix[1] this is what you actually need. > > [1]: > https://github.com/haskell/cabal/commit/d148336e97cda2e3585c453cf9af61bc3635131a > > Roman > > * Ryan Newton <rrnew...@gmail.com> [2013-05-22 22:50:08-0400] > > A cabal-install bug <https://github.com/haskell/cabal/issues/1284> was > > fixed recently that pertains to building C libraries with profiling. > > > > As a result, I want a certain > > package<http://hackage.haskell.org/package/atomic-primops-0.1.0.2>to > > test if cabal-install < 0.17.0 is used, and throw a preemptive error. > > Otherwise this package fails in weird ways at runtime (it's a nasty > one). > > > > I noticed with some surprise the following sequence: > > > > * $ cabal --version* > > * cabal-install version 1.16.0.2* > > * using version 1.16.0.3 of the Cabal library* > > * $ cabal clean* > > * $ cabal install* > > * $ cat dist/build/autogen/cabal_macros.h | grep VERSION_Cabal* > > * #define VERSION_Cabal "1.17.0"* > > > > Alright, so that, in retrospect, makes sense. The version is which *my* > > library is linked with is the relevant one, not the one cabal-install was > > linked with [1]. > > > > So the natural next thought is to move the MIN_VERSION_Cabal test into > > Setup.hs, and force cabal to use it by setting the build type to Custom. > > But... I just learned from this ticket that the cabal macros are not > > available in Setup.hs: > > > > http://hackage.haskell.org/trac/hackage/ticket/326 > > > > Uh oh, what's left? > > > > -Ryan > > > > [1] P.S. Personally I'm now using a bash function like below, to force > the > > two versions to be the same: > > > > function safe_cabal_install () { > > VER=`cabal --version | tail -n1 | awk '{ print $3 }'` > > cabal install --constraint="Cabal==$VER" $* > > } > > > _______________________________________________ > > cabal-devel mailing list > > cabal-de...@haskell.org > > http://www.haskell.org/mailman/listinfo/cabal-devel > > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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